Shank-gouging machine



F. M. FURBER. SHANK GouGlNG MACHINE.

FlLEo JUNE 22, 1918.

Jan, 9, 1923; 1,441,222

atented dan. 9, i923.

innata FREDERICK IVI. FURBEE, OF BEVER/E, MASSACHUSETTS, ASSIGNOR TO UNTED SHOE MACHINERY COREOBATION, 0F PATERSON', NEV ERSEY, ACORPORATION OF NEW JERSEY.

SHANELGOUGING MACHINE.

.Application tiled .Tune 22, 1918. Serial No. 241,309. i

To ZZ whom t may concern:

Be it known that l, FREDERICK lil. Fumane, a citizen ot the United States, residing at Revere, in the county ot Suffolk andl State ot lvlassachusetts, have invented certain lmprovements in Shank-Gouging lbachines, et' which the following description, in connee tion with the accompanying' drawings, is a specification, like reference' characters en the drawings indicating like parts in the several gures.

This invention relates to machines :tor operating upon stock and is herein illustrated as embodied in a machine tor forming in the shank portion of a sole a groove to receive a shank stiii'ener.

Hitherto this groove fhas been cut by means of a rota-ry milling,- cutter, but the cperation with such a cutter has been slow and unsatisfactory. To facilitate the operation the present invention contemplates the use ci' a lgougingcutter inclined to the surface cf a work support, and means fer producing: relative movement `between the cutter and the support in proper directions to cause the groove to be cut. ln the illustrative machine the cutter reciprocates over the work support, the support is raised and lowered at the proper times, and a gage travels with the cutter and is operated at the proper time-fte cause the knife to emerge 'from tliesteck.

This rand other 'features of the invention including; certain details of construction and combinations ot parts will `be described as embodied in an illustrative machine and pointed out in the appended claims.

Referringv now to the accompanying draw-r ings,

Fig. l is an elevation of a machine in which the present invention is embodied;

Fig. 2 is a plan ofthe. machine;

Fig. 3 is an elevation ot the knife holder, the knife and the means tor holding;` the knife in adjusted position;

lFiO'. 4 is a cross-section on the line 4`4 ot Fig. 2:

Fig. 5 is a cross-section on-theline 5 5 'of Fig. l; i

Fig. 6 is a perspective of a kfull lengthsole which has been operated upon by the machine, and y n Fig. 7 fs a perspective of a three-quarters sole which has also been operatedupon. The vmachine is provided with a table 9 upon which is removably mounted a flat plate ll the upper surface of which is iiush with the upper surface of the table, said plate being; dove-tailed 'into the tableand `fastened byk screws l2, `the surface of the plate and table serving as a bed tor supporting' the stock.

Upon ways 1S formed on the base or iframe of the machine a knife carrier, herein shown as a reciprocating` carriage `15, is slidably mounted, said carriage having tast thereto a knifel. A gage or presser in the form of a mutilated cylinder 19 has trnnnionsat both ends which are mounted in suitable bearings in the carriage l5 and has threaded into it a pin 2l by which the gage may be adjusted in a vrmanner .presently te `be described, the depthot cut ot the knife depending; upon the distance. ofthe etlecjtive'tace oi'the gage above the planeoi2 the bed. The

carriage l5 is reciprocated over the bed by means ort a connecting rod 28 which is pivoted near its lower end at to the carriage l5 and at its upper end upenn hollow stud adapted tobe clamped by means of a headed pin Q9 anda. nut 3l te a rotatable segmental plateL 33, the lhead ot the pin being received in "an undercut groove 85 in said plate. rl`he groove 35 is struck about. the axis oit rotation ot the plate as a center, and consequently the carriage 15 is always moved in a path of fixed extent, although `the point at which the movement begins and endsmay 4be varied. A .power shaft 37 through a one-revolution vclutch which may be of any approved type.-

The plate 33 Yis rotatediroma Resting' upon springs 39 and held in adjusted vertical position in opposition to the force ofi' said springs byL screw ybolts 41 1s a sup-k port 43havingl proecting from its sides a seresot rolls 45. T ie table9 has twodownwardly extending ang'es provided with 1nclined slots 47 to receive'the rolls 45 `so that 'when the tableis moved longitudinallyit will be raised or lowered according to whether 'the movement is in one direction or the other. The bed is normally held, when the machine is at rest, in the lowered posi.- tion shown by a spring r9 coiled about a rod 50. This rod, which is fast at one end to the frame of the machine, passes through an eye 51 attached to 'the under side of the table and has stop nut 53 on its other end. 1n order that the table may be moved to the right and thereby raised at the proper time, said table carries a. roll 55 with which an actua-timv member 57 is adapted to contact when the segmental plate 33 is rotated. At its rear end the actuating member is slotted, as indicated, and is held in adjusted position by the pin 29 and nut 31 which hold the upper end of the connecting rod 23.

The parts of the machine thus briefly described with the exception of the knife 17 and the plate 11, are or may be similar to the vcorresponding parts of the machine shown in Patent No. 1,924,918, granted May 8, 1917, upon an application filed in my name to which reference may be had for a mo-re detained description. 1l will be understood, however, that when the clutch is thro-wn in 'the carriage make a single reciprocation over the table which is raised at a predetermined time during the forward movement of the carriage to cause the knife to enter the stock; and, as soon as the carriage starts back on the last half of the reciprocation, is lowered into the position shown.

The purpose of the patented machine is to produce a flap the full width of the sole on the heel portion thereof; but the present machine, as has been explained, is designed to cut a groove in the sole. To this end the gouging knife 17 is inclined to the plane of the table being herein shown as curved. This knife is clove-tailed into a suitably shaped slot .59 in a holder 61, which is fastened to the carriage 15, the holder being provided with a narrow slot 63 so that the knife may be held in adjusted position by a pinch-bolt G5. The holder 61 is fastened to the carriage by means of two posts the bases of which are fastened by screws to the holder. 1n the upper ends of the posts are threaded sockets to receive clamping screws G2 the heads of which abut against a spaced portion of the carriage 15. 1n order to control the movement of the gage 19 so. as to cause the knife to emerge from the stock at the desired point, the pin 21 is provided with a roll (57. A U-shaped spring 69 having one y leg fastened to the carriage 15 has the other leg engaging a groove in the upper part of the pin 21 and tends at all times to hold the pin against the end of an adjustable stop-screw 71 which is threaded into the car riage. This spring is, of course, of less strength than the springs 39 which sustain the bed. The roll 67 is adapted to be engaged vedge of the knife. 1s soon, however, as the connecting-rod 23 moves a little from the position shown, the roll 67 is released and remains so until near the end of the forward movement of the carriage when it is again engaged by the striker to depress the stock and thereby cause the knife to emerge from the stock.

Then the knife is caused to move through the stock to gouge out a groove there is a strong tendency for the stock to be lifted from the bed, and in order to counteract this tendency and to hold the stock rmly during the cutting operation, the plate 11 has fastened to it two holding members 77 the operative adjacent faces of which are undercut and provided with. teeth, as shown, to engage opposite edges of the stock. In the illustrative construction these members converge toward each other in the general direction of the forepart of the sole so as to grip the shank firmly.

1n order still furthe-r toprovide against the lifting of the sole from the bed there is fastened to the carriage 15, byy means of screws83, a presser 85 of substantially the same width as the knife or cutter 17, said presser being designed to travel in the groove. Commonly the groove is about one thirty-second of an inch in depth, and the edge of the knife 17 projects about that distance below the face of the presser.

The operation of the machine is as follows: `With the parts of the machine in the positions shown in Figs. 1 and y2, the sole is placed onv the bed between the holding members, as shown in said figures, and the one-revolution clutch thrown in. The following movements and operations then take place. The carriage starts forward and the roll 67 is released, whereupon the gage 19 is moved by the spring 69 to the limit of its clockwise movement, thereby bringing its operative face above the knife a distance equal to the depth of the groove to be' cut.

The 'actuating member 57 contacts with the,

roll 55 to raise the bed and maintain it in raised position for an interval. i The raising of the bed causes the knife to enter the stock at the point marked 10 in Fig.` 6; and as the knife is moved forward it gouges out the groove, the depth of which depends upon the extend to which thefknife projects below the presser 85 and upon the position in which the gage 19 vis held. Just prior to the end of the forward stroke of the carinsigne member 5T runs o'litrom the roll 55 .vhereupon` the bed is lowered by theaction oit the spring a9. This occurs approximately at the end ot the forward stroke oit the carriage, after Which the carriage moves bach, and the parts come to rest in the position shown. vWhen the groove shown in Fig. 7 is cut, the movements ot the machine are the same but the upward movement oi the bed caused by Contact of the actuatingv member 57 with the roll 55 takes place before the knife enters the. sole.

rlhe purpose of the removable plate 11 is to provide tor soles of different sizes and contours; and With each machine there is furnished set of plates carrying holding members located to receive the particular shapes and sizes of soles which are to be operated upon.

Having thus described my invention. what I claim as new and desire to secure by Letters Patent oit the United States is:

l. A machine of the class described, havinni, in combination, a bed Jfor supporting a sole, means rigid with the bed for holding; the sole down upon the bed, a cutter, and means for causing the cutter to produce a groove extending longitudinally of the sole in the shank portion thereof.

2. A machine of the class described, havinn', in combination. a bed ltor supporting; the sole, means rigid with the bed for holding the sole down upon the bed, a cutter having its cutting edge inclined to the surface of the bed, andV means for causing the cutter to `@gouge a n roove extending longitudinally in the shank portion of the sole.

A machine of' the class described, having', in combination, a, bed for supporting a piece oit' stock. a cutter, means for producing relative movement between the bed and cutter to cause the cutter in tvvo directions to enter, travel along` in and emerge from the stock. a gane located in advance of the cutter. and means rigid with the bed for preventing' the stock Jfrom being,` lifted from the bed by the action of the cutter.

4t. A machine ci the class described, having, in combination, a substantially flat bed for supporting` the stock, a cutter, means for producing relative movement between the bed and cutter in one direction to cut the main portion ot' a groove and in another direction to cause the knife to emerge from the stock, a gage co-operating with the cutter, to determine the depth of the cut, and means for preventing' the stock from being); lifted from the bed.

5. A machine ot the class described, having, in combination, a bed'tor supporting; a piece of stock, a cutter, one ot said n'ieinbers beingyieldable away from theother, means for producing' relative movement between the members to causethe cutterto enter the stocl, and means, rigid with the bed, for holdingv the steelt down upon the bed.

o. A machine ot the class described, having.` in combination, a bed `tor supportinga sole.` means mounted upon the bed `for engaging opposite edges oit the shank portion oi the sole to hold it down upon the bed, and

lineans ior cutting a groove in che shank porf tion ot the sole.

7. A machine of the class described, having); in combination, a bed tor supporting a piece of stock, a gougingcutter, means for causing` relative movement of the bedy and cutter in a' direction to cause the bed to be traversed by the cutter, and for causing approach and separation ot the bed and cutter, and means running in the groove made by the cutter 'for holding' the stock down upon the bed.

8. A machine oi? the class described, havinn' in combination, a bed for supporting a piece of stock, a gouging` cutterh means Jfor causing relative movement of the bed and cutter in a direction to cause the bed to be traversed bythe cutter and for causing approach and separation oit the bed and cutter,`

a located in front oif the imite, a presser located in the rear of the knifef and means carried by the bed for holding the stock thereon.

9. A machine ot the class described, having in combination, a bed ttor supporting` a piece of stock, a @youging cutter, means 'for causing relative movement ot the bed and cutter in a direction to cause the bed to be traversed bv the cutter and tor causing` ann. u. preach and separation ot the bed and cutter,

'and a `vresser arranged to enoaoe the stock i in such manner as to press the stock against the support.

1l. f-iV machine of the class described, havinggin combination, means .tor supporting' a piece of stock. a'cutter, means tor moving` the cutter over the supporting means to cause a groove to be cut in the stock, and ay presser movable with the cutter and arranged to enter the groove.

19). A machine of the class described, having, in combination, means for supporting a piece of stock, a cutter, means for producing relative movement between the cutter and the supporting means to cause agroove to be cut in the stock7 and a presser held from movement with respect to the cutter and arranged to enter the groove.

13. A machine of the class described, having, in combination, a bed for supporting a piece of stock, Seid bed comprising a table and n removable and replaceable plate hav- 10 ing stock holding 4means rigidly mounted thereon, a tool7 and means for causing relative movement between the tool and the bed.

In testimony whereof have signed my name to this specication.

FREDERICK M. FURBER.

Certicate of Correction.

It is hereby certified that in Letters Patent No. 1,441,222, granted January 9, 1923, upon the application ot Frederick M. Furber, of Revere, Massachusetts, for an improvement n Shank-Gouging Machines, errors appear n the printed specification requiring correction as follows: Page 2, line 28, for the word make read makes; same page, line 125, for the word extend read extent; page 3, line 47, claim 3, strike out the words in two directions and insert the same to precede the Word to first occurrence, in the saine line; and that the said Letters Patent should be read With these corrections therein that the same may conform to the record of the case in the Patent Oce.

Signed and sealed this 27th day of February, A. D., 1923.

[SEAL] KARL FEl\TI\lIl\TGr.I

Acting Commissioner of Patents. 

